Home / 8,923.05-13,379.18-3,991.77

Finding the Fourth Proportional to 8,923.05, 13,379.18 and 3,991.77

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Solution

The fourth proportional to 8,923.05, 13,379.18 and 3,991.77 is: 5,985.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.05 : 13,379.18 = 3,991.77 : x
  2. Step 2: Convert to fraction form
    8,923.05/13,379.18 = 3,991.77/x
  3. Step 3: Cross multiply
    8,923.05x = 13,379.18 × 3,991.77
  4. Step 4: Simplify right side
    8,923.05x = 53,406,589.39
  5. Step 5: Solve for x
    x = 53,406,589.39/8,923.05
  6. Step 6: Final answer
    x = 5,985.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.